package com.tr.state;


import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @author TRasdzz
 * @since  2021/3/10 16:25
 * @version 1.0
 */
//模拟倒计时
public class TestSleep02 {

    public static void main(String[] args) {
        //获取系统当前时间
        Date date = new Date(System.currentTimeMillis());

       /* try {
            TenDown();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }*/

        while (true){
            try {
                Thread.sleep(1000);
                System.out.println(new SimpleDateFormat("HH:mm:ss SSS").format(date));
                date = new Date(System.currentTimeMillis());//更新当前时间
            } catch (InterruptedException e) {
                e.printStackTrace();
            }


        }

    }

    //模拟倒计时
    public static void TenDown() throws InterruptedException {
        int num = 10;

        while (true) {
            Thread.sleep(1000);
            System.out.println(num--);
            if (num <= 0){
                break;
            }
        }
    }
}
